Show HN: Laid – Chrome extension that detects AI-generated LinkedIn posts (github.com)

A new Chrome extension named "Laid" has been launched, designed to detect AI-generated content on LinkedIn posts. It scores each post with a color-coded badge indicating the likelihood of AI authorship—ranging from green (0-40% chance it's AI-generated) to red (70-100% chance). Laid utilizes a local heuristic engine that operates without an API key, or users can opt for LLM-powered analysis using models from Claude, OpenAI, or Gemini. This unique feature allows Laid to combine heuristic results with LLM insight, refining the detection process. The significance of Laid lies in its advanced detection mechanisms grounded in peer-reviewed research, which identifies specific linguistic patterns associated with AI writing, such as excess vocabulary use and unique punctuation habits. By analyzing 14 distinct signals, including "burstiness" and "epistemic flatness," the extension effectively distinguishes between human and AI-generated text. This kind of tool addresses growing concerns in the AI/ML community over misinformation and authenticity in professional spaces, making it essential for users navigating the evolving landscape of content creation on platforms like LinkedIn.